49997237 has 4 divisors (see below), whose sum is σ = 51061056. Its totient is φ = 48933420.

The previous prime is 49997201. The next prime is 49997251. The reversal of 49997237 is 73279994.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 73279994 = 2 ⋅36639997.

It is a cyclic number.

It is not a de Polignac number, because 49997237 - 2⁸ = 49996981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49997267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531839 + ... + 531932.

It is an arithmetic number, because the mean of its divisors is an integer number (12765264).

Almost surely, 2^49997237 is an apocalyptic number.

49997237 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

It is an amenable number.

49997237 is a deficient number, since it is larger than the sum of its proper divisors (1063819).

49997237 is a wasteful number, since it uses less digits than its factorization.

49997237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063818.

The product of its digits is 857304, while the sum is 50.

The square root of 49997237 is about 7070.8724355627. The cubic root of 49997237 is about 368.3963637530.

The spelling of 49997237 in words is "forty-nine million, nine hundred ninety-seven thousand, two hundred thirty-seven".